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Electric cleaner with minimum noise

  • US 4,533,370 A
  • Filed: 03/24/1983
  • Issued: 08/06/1985
  • Est. Priority Date: 03/30/1982
  • Status: Expired due to Term
First Claim
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1. A cleaner comprising:

  • a housing;

    an air blower within said housing for drawing air and accompanying particles into said housing, and filter means for removing particles from said air; and

    exhaust means for receiving air from said blower and for exhausting said air from said cleaner with a minimum of noise;

    said exhaust means comprising an inlet portion adjacent one end of said housing for receiving said air from said blower, a plurality of outlet portions adjacent an opposite end of said housing for exhausting said air received by said inlet portion, and a plurality of air rectifying duct portions extending generally around external surfaces of said housing for at least substantially the length of said housing from said inlet portion at said one end to said respective outlet portions at said opposite end, each air rectifying duct portion receiving a portion of said air received by said inlet portion of said exhaust means; and

    groove means formed on the external surface of the cleaner housing for receiving and supporting said air rectifying duct portions.

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